My picture is a group of people in semi matching outfits lined up to look like they are doing calisthenics.  I enhanced it to be a scene from a summer camp doing their morning jumping jacks.  I also added in a trumpet playing reveille as well as an announcer over the PA who sneaks in a reference to why all the kids are dressed as they are
I had a total of 12 different tracks here
1 track consisted of general noise I got by recording students walking around the quad

1 track was actually Me playing Reveille on my trumpet
1 track was myself talking through a trumpet (speaking into the mouthpiece) to make it sound like i was over an intercom

1 track was just a base recording of myself as the counselor getting the kids to begin their workout 

4 tracks were all different versions of the same recording of myself counting in time to the exercise callouts

4 tracks were of me making the sound effect of jumping jacks and then spacing and timing them ever so slightly differently